Practice Definition (44.2.1) - Irrigation Requirement and Frequency of Irrigation

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6 sample questions

Question 1.
What is Irrigation Requirement?
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Focus on what crops need.
Question 2.
Name the components that account for Irrigation Requirement.
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Think about the water inputs to crops.
3Question 3.
What is the formula for calculating Irrigation Requirement?
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Think about what each letter stands for.
4Question 4.
Effective rainfall reduces the need for irrigation.
- True
- False
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Consider how rainfall helps crops grow.
Question 5.
A farmer has a CWR of 900 mm, receives 250 mm of effective rainfall, draws 80 mm from groundwater, and has 60 mm of soil moisture available. Calculate the Irrigation Requirement.
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Use the IR formula to find the answer.
Question 6.
Consider a crop that requires an IR of 350 mm. If a sudden storm provides 100 mm of effective rainfall, how much irrigation is now needed?
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Subtract the effective rainfall from the initial IR.

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